Understanding blood cancer symptoms

Every September, Blood Cancer Awareness Month shines a light on conditions that affect thousands of Australians each year — yet remain surprisingly misunderstood. Lymphoma, leukaemia, and myeloma are among the most common blood cancers, and together they account for around one in ten cancer diagnoses in Australia. The challenge is that many of their early symptoms — fatigue, swollen glands, night sweats — can feel a lot like the flu or a run-of-the-mill infection. This is exactly why awareness matters so much. Knowing what to watch for, and when to seek help, can genuinely make a difference to outcomes.

What is lymphoma, and why should you know about it?

Lymphoma is a type of blood cancer that begins in the lymphatic system — the network of tissues, vessels, and glands that plays a central role in your immune system. There are two main types: Hodgkin lymphoma and non-Hodgkin lymphoma, with non-Hodgkin being the more common of the two. Lymphoma can develop at almost any age, though it is one of the most frequently diagnosed cancers in young adults aged 15 to 39, as well as in older adults over 60.

Because the lymphatic system runs throughout the entire body, lymphoma can appear in many different places — the neck, armpits, chest, abdomen, or groin. This makes it a condition that GPs need to keep on their radar, and one that patients should feel empowered to ask about if something doesn't feel right.

Symptoms to be aware of

The tricky thing about lymphoma symptoms is how ordinary they can seem at first. Many people put them down to stress, a viral illness, or simply getting older. While there are plenty of benign explanations for these symptoms, it is important not to ignore them — especially if they persist or occur together. The World Lymphoma Awareness Day campaign, supported by organisations like Lymphoma Action, encourages people worldwide to learn the key warning signs so they can seek timely advice.

• Swollen lymph nodes — painless lumps in the neck, armpits, or groin that don't go away within a few weeks
• Persistent fatigue that doesn't improve with rest
• Unexplained weight loss — losing more than 10% of your body weight over six months without trying
• Drenching night sweats that soak your pyjamas and sheets
• Fever that comes and goes without a clear cause
• Persistent cough, breathlessness, or chest discomfort
• Itchy skin, particularly without a rash or obvious skin condition
• A feeling of fullness or swelling in the abdomen

Why early diagnosis matters

Like most cancers, lymphoma is generally easier to treat when it is found at an earlier stage. Many types of lymphoma respond well to treatment, particularly when they are diagnosed before they have spread extensively. Early diagnosis can mean more treatment options are available, shorter treatment courses, and — in many cases — better long-term outcomes.

Unfortunately, because lymphoma symptoms can overlap so much with common viral illnesses, it is not unusual for people to wait weeks or even months before seeking medical advice. Some people worry about wasting a doctor's time, or simply hope the symptoms will resolve on their own. If this sounds familiar, please know that checking in with your GP about persistent or unexplained symptoms is never a waste of time — it is exactly what we are here for.

How lymphoma is diagnosed and treated

If your GP is concerned about your symptoms, they will typically start by taking a thorough history and examining you, paying close attention to any swollen lymph nodes. From there, they may arrange blood tests, imaging such as a CT scan or ultrasound, or refer you to a specialist. The definitive way to diagnose lymphoma is usually through a biopsy — a small sample of tissue taken from a lymph node or affected area and examined under a microscope.

Treatment depends on the type and stage of lymphoma, as well as the individual's overall health and personal circumstances. Options include chemotherapy, immunotherapy, radiation therapy, targeted therapy, or a combination of these approaches. Some slow-growing forms of lymphoma may be managed with active monitoring rather than immediate treatment. Your specialist will work with you to discuss which pathway makes the most sense for your situation.

It is worth noting that advances in treatment over recent decades have significantly improved outcomes for many people with lymphoma. While every case is different, many people do go on to live full and healthy lives after treatment.

Practical steps you can take right now

Awareness is only useful if it leads to action. Here are a few simple things you can do to take care of your health when it comes to blood cancers like lymphoma.

• Know your body: Get familiar with what feels normal for you so you notice when something changes.
• Don't wait and see indefinitely: If a symptom has been present for more than two to four weeks and isn't improving, make an appointment with your GP.
• Mention everything: When you see your doctor, mention all your symptoms — even the ones that seem unrelated. Patterns matter.
• Keep up with regular health checks: Routine GP visits are an opportunity to raise concerns you might otherwise put off.
• Talk to family: Be aware of any family history of blood cancers and mention it to your GP.
• Seek reliable information: Reputable sources like the Leukaemia Foundation Australia or Lymphoma Action (lymphoma-action.org.uk) provide evidence-based information and support.

At Cronulla Medical Practice, our GPs are here to help you make sense of your symptoms, answer your questions, and refer you on if needed. We understand that visiting a doctor about something that might turn out to be nothing can feel awkward — but we would far rather have that conversation with you early than have you worrying alone. If you have noticed any of the symptoms described above, or simply feel that something isn't quite right, please don't hesitate to book an appointment with one of our doctors. Your health is worth the conversation.